reorg: message-list-view -> transcript-view

src/transcript/transcript-view.vala

@@ -0,0 +1,57 @@
+using Adw;
+using Gtk;
+using Gee;
+
+public class TranscriptView : Adw.Bin
+{
+    public MessageListModel? model {
+        get {
+            return _model;
+        }
+        set {
+            _model = value;
+
+            if (model != null) {
+                // Reset scroll position
+                scrolled_window.vadjustment = new Gtk.Adjustment(0, 0, 0, 0, 0, 0);
+
+                model.messages_changed.connect(reload_messages);
+                model.load_messages();
+            } else {
+                transcript_drawing_area.set_messages(new TreeSet<Message>());
+            }
+        }
+    }
+
+    public string title {
+        get { return title_label.label; }
+        set { title_label.label = value; }
+    }
+
+    private MessageListModel? _model = null;
+    private Adw.ToolbarView container;
+    private Label title_label = new Label("Messages");
+
+    private TranscriptDrawingArea transcript_drawing_area = new TranscriptDrawingArea();
+    private ScrolledWindow scrolled_window = new ScrolledWindow();
+
+    public TranscriptView(MessageListModel? model = null) {
+        this.model = model;
+
+        container = new Adw.ToolbarView();
+        set_child(container);
+
+        scrolled_window.set_child(transcript_drawing_area);
+        scrolled_window.add_css_class("message-list-scroller");
+        container.set_content(scrolled_window);
+
+        var header_bar = new Adw.HeaderBar();
+        header_bar.set_title_widget(title_label);
+        container.add_top_bar(header_bar);
+    }
+
+    private void reload_messages() {
+        transcript_drawing_area.show_sender = _model.is_group_chat;
+        transcript_drawing_area.set_messages(_model.messages);
+    }
+}